INSTITUTE OF MATHEMATICS · POLISH ACADEMY OF SCIENCES
BANACH CENTER
PUBLICATIONS
ISSN: 0137-6934(p) 1730-6299(e)
On a secondary invariant of the hyperelliptic mapping class group
Takayuki Morifuji1 Banach Center Publ. 85 (2009), 83-92
doi:10.4064/bc85-0-5 Abstract: We discuss relations among several invariants
of $3$-manifolds including Meyer's function,
the $\eta$-invariant, the von Neumann $\rho$-invariant
and the Casson invariant
from the viewpoint of the mapping class group of a surface.